The present disclosure provides a method for expanding a working area based on a laser map, a chip and a robot, and the method for expanding the working area includes using map pixel point information obtained by laser scanning to position pending boundary lines, deciding a next expansion of a rectangular working area according to an increment of a diagonal length of the rectangular working area framed by the pending boundary lines in a current expansion process, stopping expanding the rectangular working area of the robot when the increment of the diagonal length before expanding and after expanding reaches an overlap condition.

The present disclosure provides a method for controlling a robot cleaner including a travel operation in which the robot cleaner travels, a recognition operation in which when the robot cleaner contacts an obstacle during the travel, the robot cleaner determines whether the obstacle is pushed by the robot cleaner and slides, and an obstacle bypass operation in which upon determination that the obstacle is the pushed-and-sliding obstacle, the robot cleaner stops the travel and then bypasses the pushed-and-sliding obstacle.

A mobile robot is configured to move a main body and rotate a cleaning cloth by means of a motor to clean a surface. A location change of the main body is analyzed to determine a traveling state of the robot. The absence of the cleaning cloth is detected and the operation of the robot is controlled based on the detected travelling state. A user is notified about the absence of the cleaning cloth.

One object determining system comprising: an air ejection device, configured to eject air; a distance detecting circuit, configured to detect distances between an electronic device comprising the object determining system and at least one location of an object when the air ejection device ejects air to the object; and a determining circuit, configured to determine a type of the object according to variations of the distances.

A method for preventing a robot from colliding with a charging base, including: step 1, during a process of moving in a current working area of the robot, detecting, in real time, a reception condition of a base avoidance signal of the robot within a received signal coverage range thereof; and step 2, establishing a safety area in the current working area according to a direction feature relationship between the base avoidance signal and a preset working path of the robot, and before establishing the safety area, according to an orientation relationship between the base avoidance signal and a direction of a current moving path of the robot, marking and establishing a danger area at a position that satisfies a collision avoidance relationship with a current position of the robot, so that the robot avoids the charging base during the process of moving in the current working area.

The present disclosure relates to a blockage and a smart cleaning device. The blockage includes a plug body and a hierarchical sealing structure. The plug body is a shaft-shaped structure as a whole, and is provided with a through hole that penetrates the plug body. The hierarchical sealing structure is sleeved on an outer side of the plug body, and is provided with at least two annular plugs stacked in an axial direction of the plug body.

Provided are dynamic region division and region passage identification methods and a cleaning robot. The dynamic region division method includes: acquiring environment information collected by a robot when working in a first region; determining whether the robot has completed a work task in the first region, when a presence of a passage entering a second region is determined based on the environment information; and complementing a boundary at the passage to block the passage, when the work task is not completed. According to the technical solution provided by the embodiment of the present application, the occurrence probability of repeated sweeping and miss sweeping is reduced, and the cleaning efficiency is high. In addition, the technical solution provided by the embodiment of the present application relies on the environment information collected during the work, rather than relying on historical map data, so that the environmental adaptability is high.

A floor cleaning machine with a base, a control handle and a joint that permits that permits the handle to be pivoted in arbitrary directions relative to the base. The joint has first and second joint elements that are each attached to a corresponding of the base and the control handle. The first joint element has an envelope in the shape of a ball socket and is received into the second joint element. The first joint element is pivotable relative to the second joint element about a stationary fulcrum. The center of the envelope is non-displaceable relative to the second joint element. Grooves, which run in an arcuate manner, are provided on one of the first and the second joint elements, while corresponding engagement parts are provided on the other one of the first and the second joint elements and extend into corresponding ones of the grooves.

A robot cleaner having a shielding module provided under a cleaner body is provided. The shielding module includes a cam and a hiding plate which rotate with the same phase angle about a same rotating shaft. The distance between the center of the hiding plate and the center of the rotating shaft is longer than the distance between a contact point on a cam surface of the cam and the center of the rotating shaft. A guide protrusion of a bumper is in contact with the cam surface at the contact point. Therefore, the rotation movement speed of the hiding plate which rotates to hide a cliff sensor is much faster than the inner movement speed of the bumper, thereby improving sensitivity to the detection of a collision between the bumper and an obstacle by using the cliff sensor.

A riding floor cleaning machine having an intelligent system including a main frame sub-assembly, a steering and drive wheel sub-assembly, a solution tank sub-assembly, a recovery tank sub-assembly, a recovery tank cover sub-assembly, a control panel sub-assembly, a main controller sub-assembly, a seat and detergent system sub-assembly, a battery sub-assembly, a scrub head sub-assembly, a scrub head lift sub-assembly, a squeegee sub-assembly, a solution and detergent sub-assembly, and an intelligent system associated with at least one of the above-identified sub-assemblies, wherein the intelligent system selectively gathers, obtains, monitors, stores, records, and/or analyzes data associated with components of the riding floor cleaning machine, and controllably communicates and/or disseminates such data with another system and/or user.